Home / 53,539.80-73,888.19-30,878.38

Finding the Fourth Proportional to 53,539.80, 73,888.19 and 30,878.38

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Solution

The fourth proportional to 53,539.80, 73,888.19 and 30,878.38 is: 42,614.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,539.80 : 73,888.19 = 30,878.38 : x
  2. Step 2: Convert to fraction form
    53,539.80/73,888.19 = 30,878.38/x
  3. Step 3: Cross multiply
    53,539.80x = 73,888.19 × 30,878.38
  4. Step 4: Simplify right side
    53,539.80x = 2,281,547,608.33
  5. Step 5: Solve for x
    x = 2,281,547,608.33/53,539.80
  6. Step 6: Final answer
    x = 42,614.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.